1616747281 (=1616672281=1616679281): O.F.S. I-41

The Atlas Copco 1616747281 O.F.S. I-41 Air End (=1616672281=1616679281) serves as the core compressor element for Atlas Copco oil-free rotary screw compressor series. Engineered specifically to support critical industrial environments that require Class 0 oil-free compressed air according to ISO 8573-1 standards, this high-performance air end restores factory-level efficiency, flow rates, and operating pressure to your system.

Technical Specifications

Working Principle of the Oil-Free Screw Air End

The Atlas Copco O.F.S. I-41 air end utilizes a dual-shaft non-contacting rotary screw design engineered to compress atmospheric air without introducing oil into the compression chamber:

Synchronized Non-Contact Rotation: Male and female asymmetrical rotors spin in opposite directions within a precision-machined housing. Precision timing gears outside the compression chamber drive the rotors, maintaining tight mechanical clearances between the rotor lobes without physical contact, eliminating the need for oil lubrication inside the chamber.

Continuous Volumetric Compression: Atmospheric air enters through the intake valve and fills the expanding cavity between the rotor lobes. As the rotors turn, the meshing lobes reduce the cavity volume, progressively compressing the air and forcing it toward the discharge outlet.

Advanced Thermal Barrier Coating: Precision rotor surfaces incorporate specialized surface coatings (such as Atlas Copco’s proprietary Teflon-based protective layers). This coating protects against corrosion, reduces dynamic thermal expansion, and maintains maximum volumetric efficiency across demanding duty cycles.

Labyrinth Sealing System: Mechanical oil seals and multi-stage air seals separated by open atmospheric vent channels completely isolate the gear lubrication casing from the compression chamber, ensuring strict ISO 8573-1 Class 0 air purity.

Sourcing Authenticity & Quality Assurance

We procure this brand-new, original genuine air end directly from Atlas Copco (Shanghai) Trading Co., Ltd. We deliver every unit in factory-sealed original packaging complete with clear product identification tags and serial numbers. By establishing direct procurement pipelines with regional Atlas Copco manufacturing hubs, we guarantee complete supply chain integrity, preventing counterfeit risks and ensuring long-term operational peace of mind.

We supply this  genuine O.F.S. I-41 air end with clear item identification and factory packaging. In accordance with Atlas Copco standard warranty policies, this product carries a 12-month warranty against defective design or manufacturing flaws, giving buyers complete confidence in both performance and long-term support. Please note that improper fitting, operational misuse, and normal wear and tear are explicitly excluded from warranty coverage. Utilizing non-genuine replacement parts on your compressor system leads to the cancellation of all warranty claims.

Product Advantages

• Certified ISO 8573-1 Class 0 Zero-Risk Air: Guarantees 100% oil-free air delivery, eliminating process contamination risks in food, beverage, pharmaceutical, electronics, and automotive manufacturing applications.
• Maximum Energy Efficiency: High-precision rotor geometry minimizes internal leakage and reduces power consumption per CFM, helping lower total cost of ownership.
• High Thermal Stability: Engineered to handle high thermal loads during continuous duty operation without rotor scuffing or loss of pressure.
• Direct Bolt-On Compatibility: Precision factory tolerances ensure exact alignment with gear casings and pipe flanges, minimizing installation downtime.

Maintenance Guidelines & Replacement Schedule

Following strict maintenance protocols extends the life of your O.F.S. I-41 air end and protects your equipment investment:

• Daily / Weekly Monitoring: Check operating temperature, vibration levels, and air pressure differentials across stages. Regularly check atmospheric vent ports to ensure zero oil accumulation.
• Every 4,000 to 8,000 Operating Hours: Replace intake air filter elements and gear oil filter cartridges. Perform regular lubricant sampling to monitor gear oil condition.
• Every 24,000 to 40,000 Operating Hours (Major Overhaul Interval): Perform comprehensive condition monitoring. Replace or overhaul the air end at this stage to prevent premature bearing fatigue, seal wear, or rotor coating deterioration.

Step-by-Step Installation Process

1. Safety Isolation & Pressure Relief: Isolate the air compressor unit from electrical power sources using Lockout/Tagout (LOTO) safety procedures. Completely vent all internal system pressure and wait for the unit to cool down.
2. System Disassembly & Oil Draining: Drain all lubricant from the gear casing. Disconnect suction and discharge pipe flanges, oil lines, and instrument sensor connections. Unbolt the old air end.
3. Safe Mechanical Hoisting: Secure certified lifting straps or eye-bolts to the designated lifting points of the 118.8 kg air end. Carefully hoist the old air end off its mounting base.
4. Surface Cleaning & Gasket Replacement: Clean all mating surfaces thoroughly with approved solvents. Always fit brand-new, genuine sealing gaskets and O-rings before positioning the new air end.
5. Air End Mounting & Alignment: Lower the new 1616747281 O.F.S. I-41 air end onto the mounting pad. Align drive shafts and gears accurately, then torque all flange bolts in a cross-pattern to recommended factory specifications.
6. Pre-Commissioning & Startup Check: Refill the gear housing with fresh genuine Atlas Copco lubricant oil. Turn the input shaft manually to ensure smooth rotation. Perform a short no-load test run to verify temperature and vibration before placing the compressor into full production.

Order Now！

Order genuine and original Atlas Copco 1616747281 (=1616672281=1616679281): O.F.S. I-41 air end to protect your production facility from unscheduled downtime. Contact our technical engineering team at Sekes today for direct stock availability, expert fitment support, and fast global shipping quotes!

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